Materials

Test Types

Standard

This test method was designed to determine tensile properties of plastics based on the general principles given in ISO 257-1:2012. These properties include tensile strength, strain at break, modulus, and yield.

Products that may be tested in accordance with this standard include thermosets, thermoplastics, and fiber-reinforced plastics. Test specimens may be rigid, semi-rigid, molded, or extruded plastics and are commonly in the shape of a dumbbell or dog bone.

The challenges of testing to this standard are:

Repeatable strain measurement

Secure gripping of varying specimens

Reporting calculations in compliance with the standard

Instron's Solution:

Repeatable strain measurement – An extensometer is required by the standard to accurately measure strain. Advanced strain solutions include non-contacting extensometers, such as the Advanced Video Extensometer 2 (AVE2) and automatic contacting extensometers, such as the AutoX 750. These solutions have the accuracy to measure modulus as well as strain to failure and require little influence from the operator which can resulted in improved repeatability. A 75mm gauge length clip-on extensometer, such as 2630-123, also meets the measurement accuracy stated in ISO 527-2:2012. For quality control testing a 50mm gauge length extensometer, such as 2630-111, is still compliant.

The AutoX 750 is a high-resolution, long-travel automatic contacting extensometer. It can be mounted onto any electromechanical 3300, 5500, or 5900 table top and floor model systems, as well as LX, DX, HDX, and KN static hydraulic testing systems. It is well suited for applications involving plastics, metals, biomedical, composites, elastomers, and more. The AutoX has a maximum travel of 750 mm and accuracy of ± 1 µm.

5900 Universal Testing Systems are engineered for precision, built for durability, and offer the flexibility for changing requirements. They are designed with standard and optional features that increase testing efficiency and improve the testing experience for the operator. A wide range of models are available for testing capacities from < 100N up to 600kN.

The newest automated testing systems for plastics: the TestMaster AT3 for tensile testing and the TestMaster AT3+ for tensile and flex testing. These automated systems are designed to meet the testing requirements of ASTM D638 and D790, as well as ISO 527 and 178.

Available for tensile, flexural, and compression testing, Instron® TestMaster Automated Testing Solutions can improved the safety and productivity of testing for a wide range of materials and specimen sizes.

Bluehill Universal Software is built from the ground-up for touch interaction and an intuitive user experience. Discover simpler and smarter testing with features such as pre-loaded test methods, QuickTest in seconds, enhanced data exporting: and Instron Connect – a new feature that provides a direct communication link to Service.
Users of previous versions of software such as Bluehill 2 and Bluehill 3 can easily upgrade to the newest version of Bluehill.

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